The zip code 15413 in Allison, Pennsylvania, is classified as a "White Majority" community with low to moderate diversity as of 2022. The area has 153 residents and a median income of $81,242. From 2013 to 2022, Allison maintained its status as a "White Majority" community, but showed signs of increasing diversity. The white population decreased from 96% in 2013 to 80% in 2022. The black population increased from 3% in 2013 to 8% in 2022. The Hispanic population reached 8% by 2022. A "two or more races" category emerged, representing 3% of the population in 2022.

The median income in Allison fluctuated over the decade. From 2013 to 2019, it remained relatively stable between $59,951 and $67,074. In 2020, it peaked at $84,850, followed by a decline to $56,933 in 2021. In 2022, it rebounded to $81,242. The population declined from 149 residents in 2013 to 102 in 2019, then increased to 153 in 2022.

The trends in Allison reflect broader national patterns. Increasing diversity in previously homogeneous communities is observed across many parts of the United States. The economic volatility, particularly the decline in 2021 and recovery in 2022, aligns with national economic trends related to the COVID-19 pandemic. The gradual increase in minority populations, especially Hispanic and multiracial residents, corresponds with national demographic shifts.